Color-carrier for color photography.



l. KITSEE. COLOR CARRIER FOR COL 0R PHOTOGRAPHY.

APPLICATlON FILED SEPT-13,1916- Patented M123, 1917.

to later suitably sensitized and 8 its color, "to-day, for the purpose of producing screens 85 film out of whic Ismon KITSEE, or PHILADELPHIA, PENNSYLVANIA.

COLOR-CARRIER non, COLOR PHOTOGRAPHY.

it in color carriers for color photography.

Its object is to produce the color carriers in the most improved form.

In such processes, in which carriers for the colors are employed to produce the color it screen, it is of the utmost importance, that these carriers should be transparent and should be of desired dimensions, and not, as is so far the case, of dimensions differing for the different carriers, either'in thickness or otherwise.

For this purpose I have adapted the method as will be outlined in this application and claims following this application.

To illustrate some forms my invention may take I have reference to the accompanying drawing.

In this drawing: Figure 1 is a plan view of a suitable base. Fig. 2 is a similar view of the bases'urfaced with a material, adapted to to be dissolved in an agent not injuriously affecting the film which will later on be placed on this material. Fig. 3 is a similar view of a suitable base, surfaced by the material as in Fig. 2 having placed thereon the M adapted to' be usedforpliotographic pur-- posesand afterward to be suitably sensitized.

and illustratingthe color screen made of the divided film. I I 7 In these figures, 1 is the support, 2 the ma terial surfacing the same, 3 the film, 4 indicates the cutting lines. In Fig. 5 6 are the carriers fashioned out of the film, here shown by the process of cutting, 4 the cutting lines. In Fig. 6,-7 isthe blank to be screen. as an entirety comprising here the three. colorsblue-violet,- green and red and indicated bythe numerals 9, 10 and 11 respectively.

It is supposed, that the film out of which the colored'carriers are to be fashioned is the carriers are to be fash 'sent the red and the. third I Specification of Letters Patent. Patented Apr. 3, 191i. 'I, Application filed September 13, 1916. Serial- No. 119,905.

produced of a solution of dissolved cellulose,

such for instance as celluloid. It' is well' known that celluloid is not soluble in water and Wlll not be injuriously affected if placed in contact with same. In this case the material 2, which surfaces the support 1, is

therefore preferable, a solution of gum arabic, starch or similar substances, and as water has to penetrate and dissolve this surfacing material, it is best that thesupport should consist of a stiff sheet or board of paper easily penetrable by water. v

. The method of producing the carriers in such'instances is as follows:

A paper board is surfaced, with the aid of 'a brush or otherwise with a material adapted to be dissolved in water and as it is supposed that this material consists of a solution of gum arabic, then the support is provided with the surface of gum arabic and after the surface is dried out, a film of celluloid is produced thereon, by first dissolving the celluloid in its solvent, such for instance as amyl-acetate alone or intermixed with acetone or other solvents.

-Alcohol and ether, good solvents, have to be barred, as they leave the film in a trans-- lucent state when dry. Carehas to be taken therefore to only employ such solvents as will not affect the transparency of the dry film. The solution of celluloid maybe applied to the layer of gum arabic with the aid of brush or otherwise.

I Should the three color scheme be employed, three supports with their surfacing .material and celluloid film have to be provided.

To produce the colors on the film, the celluloid solutionmay be colored and then three different solutions be employed, one for the blue-violet, one for the green, and one for the red, if such colors are selected.

If it is desired, only one colorless celluloid solution may be employed and the films then,

after having been 'dried, colored to suit the requirements. One, as I said above, to represent the blue-violet, the second to repreto represent the green. a

I With the .aid of such machinery, as is used for half-tone photography, the film is then cut in squares of desired dimensions and I have found that it is an easy matter to make these cuts every five hundredths of an inch and that it is even possible to produce cuts be used for photographic purposes.

eight hundredths of an inch, thereby producing individual pieces of the film small enough to require more than a half a million per square inch. After the film has been cut, the support with its adhering filmpieces is soaked in water, whereby thegum arabic will be dissolved and the minute filmpieces will be released from their support and the adhering gum arabic. The different colored film-pieces are then well intermixed and sprayed or otherwise placed on suitably prepared surfaces of the blank, late ?j to he surface of this blank is best provided with a slightcoating of an a-gglutinant, so that these particles may adhere to the surface, but care'should be taken that 'this agglutinant should be of proper consistency and should not be laid on too heavy, as otherwise the particles will'over-lay each other.

Great care should be taken in selecting the proper support. The same should be stiff enough so as not to bend during the process of cutting and hard enough so as not to yield too much to the pressure of the cutting knife. Without the proper support itjis impossible to. produce good results., H I am well aware that -the support itself may consist of .a material soluble in an agent not injuriously affecting the film proper, as for instance a solid block of glue, gelatin or similar substance which is soluble in water. In this case, the support or block does naturally not have to be surfaced with an intermediate material. But I found, that such method is not very practical.

I am also aware, that the colors may be applied to the divided parts of the film and not before, but such proceeding does not. give good results.

Having now described my invention what I claim as new and desire to secure by Letters Patent is:' y i '1. In theprocess of'producing color carriers "for .color photography the method which consists in securing a film out of j which the carriers are to be produced onto a suitable base with the interposition of a material'soluble in an agent not injuriously affecting said film, dividing said film into a series ofindividual'parts and freeing said partslfrom'said support with an agent not injuriously affecting said parts.

2. In the pro e's's of' producing color carriers. for color photography the method which consists in surfacing a suitable support with a material soluble in an agent not injuriously. affecting the material out of dried with a soluble cellulose in a manner so that said cellulose should produce a continuous film when dried, dividing said continuous film into required parts and freeing said parts from said support.

4. In the process of producing color carriers for color photography the method which consists in coating a suitable support, surfaced with a suitable material, with a colored solution in which a soluble cellulose is dissolved, in a manner so that said coating shouldform a continuous film when dry, dividing said film into a series of individual parts and removing said parts from said support.

5. As anew article of manufacture a support, a coating for said support, .a celluloid comprising a suitable colored and minute part of a celluloid film. I 7. The method of producing color carriers for color photography which consists' in securing a thin film of dissolved cellulose on a suitable support, with the interposition of a material soluble in a suitable agent, dividing said film into a series of individual parts during the time that said film is adhering to said support, said individual parts colored to suit the requirements.

8. In the production of color carriers for color photography the steps which consist in securing a film out of which the carriers are to be fashioned onto a suitable support, dividing then said film into a number of individual parts and freeing then said parts ISIDOR KITSEE.

Witnesses:

FRANCES RUTHERFORD, ERNEST MILLER. 

